Material for roofing purposes



1' UNITE STATES PA OF IC i STEPHENM. ALLEN, or nUXBUaY, MASSACHUSETTS.

MATERIAL; FOR Root-me PURPOSE-S.

SPECIFICATION forming ater Letters iatent No. 27s,4s1,'d ed May as, less.

Applicatien flleddanuary 8,1883. (No speelmenmi Torall whom it may concern:

Be it known that Lsmtrnm M. ALLEN, ot

- Duxbury, in the county of Plymouth and Commonwealth of Massachusetts, have invented a new and useful- Improvement in Material for Roofing and other Purposes, which improvement .is;ful'ly set forth infollowing specification.

Q 16 p a This invention-consists in mixing with ascoal tar, roofing pitch, or equivalent dition, powdered or pulped fiber of vegetable or, animal origin, specially wood fiber, in suffficient proportions to make a' paste; also, in rolling out the said paste into a sheet;,a'nd,: further, in applying the paste to a backing of paper, felt, or other fabric. It likewise in-; eludes the new productsor materials thus made. V l

, It may be observed that heretofore sheets: of paper and felt, and also, webs or .bats formed of disintegrated wood fiber,have been saturated with asphalt; but-these are difl'erently made, and in themselves difi'er from the material made in accordance-with the present invention. e

The invention is or may be carried into effeet in the following manner: Take asphalt, coal-tar, roofing-pitch, or other resinous matter, or a composition containing them, or one or more of them, alone or mixed with animal orvegetable or mineral oil, or oily productssay one hundred pounds of asphalt-and having'melted the same by heat stir in the pew dered or pulped fiber until a substantial paste is made-say two hundred pounds of powdered wood fiber or dry wood pulp. The paste thus made can be applied to a roof or other a surface like mortar, or it can be molded into various shapes. Preferably, however, it .is rolled into sheets. For this purpose the paste .is fed between rollers, which are or may be heated, (like those used for rolling out rubber, for example,) and soapstone-dust, clay, or other like substance, is sprinkled over the material to prevent its, adherence tothe rollers, and to give-it a smooth surface. The paste also is or maybe applied to a backing of paper. paper or leather rollers, or byother suitable means.

To use the new roofing the sheets may be ap- "asphalt or its equivalent, from melting and running in-hot weather and l to the fiber. material reduced to a liquid or semi-liquid eonboard, felt, cloth, or other fabric, by

plied with or without a coating'oftar and gravel. y

The material is water-proofi and, owing to the admixture-0t the fibrous matter with the prevents the latter from cracking or shrinkingin cold. Pigments and earthy mineral matters may be mixed with the asphalt, if desired,'-in addition 60 It may be observed that others have pro-'- posed to mix-wood pulp or disintegrated wood fiber with boiling asphalt, an'dto mold the same into blocks for paving purposes;1 but, so far as I am aware, the fiber was never mixed!v with asphalt inthe proportions above indieated; n ither was the mixture used for roofing purposes, nor made into a sheet, nor applied to a backing, as indicated, nor was'a mixture adapted to such uses contemplated.

I claim- ,1, The paste of animal or vegetable fiber. mixed and combined with asphalt orlike material or composition in the proporti ns sub stautially as described. I

2. A sheet of the mixed asphalt,orl|ike material or composition and fiber, substantially as described. i y

3. A material for roofing or other purposes, 8o composed of 'fiber mixed with asphalt or its equivalent, and applied to a web or backing, substantially as described. I g

4.. The "method of making a sheet for roofing or other purposes by mixing powdered or pulped fiber with heated asphalt er'lilke material oreomposition', and rollingthe paste thusformed into sheets, substantially as described. 5. The manufacture of material for roofing and other purposes by mixing fiberwith asphalt or like material or composition, and ap plying the paste thus formed tea web or backing of paper or other fabric, substantially as described. j M y p v In testimony whereof I have signedthis specification in the presenee'of'two subscribing witnesses.

STEPHEN- M. ALLEN.

Witnesses:

FLORENCE 151mm,; I Amara FLAGG. 

